Time-based rewards

1. Free-to-Play vs Pay-to-Play (Player-Centric Gamification Tips)
2. Level Design vs Game Balance (Player-Centric Gamification Tips)
3. Player Abilities vs Player Competencies (Gamification Achievement Systems Tips)
4. Player Effort vs Player Reward (Gamification Player Progression Tips)
5. Player Expectations vs Player Satisfaction (Gamification Player Progression Tips)
6. Player Experience vs Player Competence (Gamification Player Progression Tips)
7. Points vs Badges (Player-Centric Gamification Tips)
8. Power-Ups vs Boosters (Player-Centric Gamification Tips)
9. Game Rewards vs Real-World Rewards (Gamification Achievement Systems Tips)
10. Player Metrics vs Game Metrics (Gamification Achievement Systems Tips)
11. Game Objectives vs Player Objectives (Gamification Player Progression Tips)
12. Goals vs Objectives (Gamification Achievement Systems Tips)